Archer C9 v1
Gone quiet reasonably evidenced
no firmware for long enough to stand out against its own record
2140 days since the last release against a median gap of 752 (2.8x) — but 2140 days without firmware is quiet whatever the cadence
- Last firmware
- 19 November 2020 (6 years ago)
- Releases seen
- 3
- Update rhythm
- about every 2 years
- Support observed
- ≥4 years
- Vendor's promise
- no support period we can evaluate
- Patch latency
- not measurable — its changelogs name no CVE ids
Which one do I have?
TP-Link ships this model in more than one hardware revision, and they do not share firmware. The revision is printed on the label on the underside, usually after the model — Ver 1.0, V4.6. Getting it wrong is the easiest way to read the wrong answer here.
- Archer C9 v3 (US) Gone quiet 4 releases
- Archer C9 v4 (US) Gone quiet 3 releases
- Archer C9 v5 (US) Gone quiet 5 releases
Firmware history
-
Archer C9(US)_V1_210107 19 November 2020
Release notes — disclosure 0.24
New Features/Enhancement: Enhance device security. Only for Archer C9(US).
Archived page, fetched 29 September 2026
-
Archer C9(US)_V1_180125 12 February 2018
Release notes — disclosure 0.52
New Features/Enhancement 1.Optimized the IPv6 function 2.Optimized the PPPoE function Bug Fixed 1.Fixed the WPA2 Security (KRACKs) Vulnerability 2.Fixed the bug that the domain name can't be resolved through TCP DNS request Note 1. After upgrading to this firmware, the device cannot be downgraded back to the old version. 2. The router will reset after upgrading this firmware.
Archived page, fetched 29 September 2026
-
Archer C9(US)_V1_161008 8 October 2016
Release notes — disclosure 0.32
Modifications and Bug Fixes: New Features/Enhancement： Improved the stability of WIFI transmitting power.
Archived page, fetched 29 September 2026
Evidence
One archived page sits behind this record, the earliest read on 1 August 2026. Everything above was read from it, and each is kept byte for byte so it can be checked after the vendor edits the original.
Identifiers: marketing_name Archer C9
Judged by lifecycle-1 on 29 September 2026.
How these verdicts are computed.